Home / 18,750.74-25,868.58-10,788.68

Finding the Fourth Proportional to 18,750.74, 25,868.58 and 10,788.68

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Solution

The fourth proportional to 18,750.74, 25,868.58 and 10,788.68 is: 14,884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.74 : 25,868.58 = 10,788.68 : x
  2. Step 2: Convert to fraction form
    18,750.74/25,868.58 = 10,788.68/x
  3. Step 3: Cross multiply
    18,750.74x = 25,868.58 × 10,788.68
  4. Step 4: Simplify right side
    18,750.74x = 279,087,831.67
  5. Step 5: Solve for x
    x = 279,087,831.67/18,750.74
  6. Step 6: Final answer
    x = 14,884.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.